大跨度小夹角巷道立交的研究与应用

Research and Application of Large Span and Small Angle Roadway Interchange

随着巷道不断地进行开拓以及后期各类功能性巷道的布置,巷道与巷道之间不免会形成立交。层间距较小、巷道夹角小的巷道,会导致立交跨度大,不利于巷道稳定,且受施工顺序影响存在不利于施工等问题。提出了一种大跨度悬吊过立交段方案,该方案在郭屯煤矿-808 m辅助进风上山立交得到成功应用。

With the continuous development of the roadway and the later arrangement of various functional roadways,an interchange will inevitably form between the roadways. The roadway with small layer spacing and small roadway angle will lead to large overpass span, which is not conducive to the stability of the roadway, and there are problems that are not conducive to the construction due to the influence of the construction sequence. A scheme of large span suspension passing through the overpass is proposed, which has been successfully applied in Guotun Coal Mine-808m auxiliary air inlet overpass.